Grob Opening Discovered Attack Puzzle (Rated 1040): Use Discovered Attack — Crushing Middlegame

This puzzle is a classic middlegame example of a discovered attack, where one forcing move opens a line for a stronger piece and creates immediate tactical pressure. The key idea is that the opponent’s king safety is already fragile, so a single check can overload defenders and expose loose pieces. In positions like this, the best continuation is rarely quiet: it is a forcing sequence that wins material by exploiting pins, skewers, and undefended pieces.